-4.09" barrel -Black machined steel slide -Front slide serrations -Black polymer frame -Ergonomic grip   -Includes 3 changeable backstraps & 6 side panels -MIL-STD 1913 Picatinny rail -Fixed 3-dot night sights -Enhanced HK "light pull" trigger -Ambidextrous slide release -Three 10-round magazines -7.34" overall length